<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>fixed.html</title>
    <link href="https://cdn.bootcss.com/material-design-icons/3.0.1/iconfont/material-icons.css" rel="stylesheet">
</head>
<style>
    body,html{
        padding: 0;
        margin: 0;
        width: 100%;
        min-height: 100vh;
    }
    .main{
        display: flex;
    }
    .nav{
        height: 100vh;
        width: 100px;
        position: fixed;
        background-color: #142467;
        color: white;
    }
    .item{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .item i{
        margin-top: 10px;
        font-size: 70px;
        transition: 0.5s;
        cursor: pointer;
    }
    .item i:hover{
        transform:translate(0,-5px)
    }
    .content{
        margin-left: 100px;
    }
</style>
<body>
<div class="main">
    <div class="left">
        <div class="nav">
            <div class="item">
                <i class="material-icons">access_alarm</i>
            </div>
            <div class="item">
                <i class="material-icons">ac_unit</i>
            </div>
            <div class="item">
                <i class="material-icons">account_balance</i>
            </div>
        </div>
    </div>
    <div class="content">Lorem ipsum dolor sit amet consectetur adipisicing elit. Magni blanditiis eius aliquid repellendus error. Pariatur quam a libero mollitia dolorem, quod, iusto sit consequuntur vero earum in sed quas reprehenderit!</div>
</div>
</body>
</html>